Wheel



w. Z. BLACK AND D. w. BUTZ. WHEEL.

APPLICATION FILED JULY 29, I9I9'. 1,390,871 Patented Sept. 13, 1921.

3 SHEETS-SHEET l.

WITNESS: IN VEN TORS A TTORNE Y.

W. Z. BLACK AND D. W. BUTZ.

WHEEL.

' APPLlCATiON FXLED JULY 29, 1919. 1,390,871. PatentedSept. 13,1921. 3SHEETS-SHEET 2.

Ov/7E T INVENTORS WITAESS. w, ZBZ x,

A TTORNE Y.

W. Z. BLACK AND D. W. BUTZ. WHEEL.

APPucATloN FILED :uw 29. 1919.

1,390,871, l 4 Pantedsept. 13,1921.

WITNESS.- BY m fi ATTORNEY.

` UNITED STATES PATENT OFFICE.

`TITILLILIAIIII Z. BLACKAND DELBERT W. B'UTZ, OF KOKOMO, INDIANA.

WHEEL.

Specication of Letters Patent. Patented Sept. 13, 1921.

Application led July 29, 1919. Serial No. 314,028.

To allee/10m Gezwam.'

`Be it known that we, WILLIAMZ. BLACK and DELBERT W. BU'rz, citizens ofthe `"United States, residing at Kokomo, in the caring between the whee`countyoll` Howard and State of Indiana,

*suitable openings in the rim thereof, and by virtue of such movementremoving mud and dirt from said rimQ A further object of the inventionis to provide a tractor wheel having calks movable through the peripherythereof which 4may be retracted and projected from other y portions ofthe wheel, to provide a smooth and the surface ,on which the wheeltravels, and conse- ,quently prevent the wheel inflicting injury "to lasmooth road bed `when the vehicle is passing .thereover. y l A furtherobject of the invention is to produce a tractor wheel having slidablecalks and a scraper member being arranged onthe periphery of the wheelto retain the y same free of mud, dirt or other accumulations.` A y y ,y

Other objects and-advantages will present themselves as the nature ofthe invention is `better understood, reference being had totheaccompanying drawings, in which: y

Figurel is a side elevation of a tractor wheel constructed 1n accordancewith this y invention.

Fig. 2 is a sectional view approximately on the line 2--2 of Fig. 1.

Fig is a transverse sectional view apprximately on the line 3-3 of Fig.2.

Fig. 4 is an end elevation with one of the side plates removed.

Fi 5 is a greatly enlarged detail sectiona view through the hub portionof the device.

Fig. 6 is a similar sectional view through the cam member.

. Fig. 7 is a perspective view of one of the calks and the integral armtherefor.

Fig. 8 is a fragmentary plan view of the wheel showing the scraperarranged thereon.

Fig. 9 is a similar view illustrating another form of scraper.

While our improvements are primarily devised as the propelling wheels oftractors, it is, of course, obvious that the same may be employed onother vehicles.

Referring now lto the drawings in detail, the numeral 10 designates thespindle end of an ordinary` vehicle axle. Surrounding the axle 10 is asleeve 10. Either integrally formed with the sleeve or secured to thecenter thereof is a cam 17. On the sleeve 10 there are eccentricallymounted disks 13 that contact with the opposite `faces of the cam 17.The disks have their portions which surround the sleeve thickened, as at11 and 12 respectively to provideV outstanding bosses. When theimprovement is attached to a revoluble axle the members 13 are securedthereto, but when the axle is stational'y, as in the present instance,the disk members 13 have their bosses secured to the sidemembers 14 and15 of the tractor wheels 16. Disposed in contacting relation with thecam 17are the inner ends of radially disposed arms 18. Each of the arms18 is guided between airs of anti-frictional rollers 20journale insuitable openings in rings 20 that are secured on the inner faces of thesides 14 and 15 of the wheel.

As illustrated, particularly in Fig. 7 of the drawings, it will be seenthat each of the` arms 18 is given a half twist, as at 21 to provide ansingularly disposed end portion 23, and it is thisportion that is incontacting engagement with the cam. The outer portion of each of thearms, indicated by the numeral 22 terminates in a widened end 19, thesaid widened portion providing calks which are guided through angularlydisposed openings in the rim 25 of the wheel. The rim is removablysecured between the side members of the wheel.

The inner ends 23 of each of the arms 18 are snugly received between thedisks 13 and are each provided with a slot or opening 23. Each of theopenings 23 is disposed an equi-distance from the end of the arm thatcontacts with the cam, and passing through the openings in all of thearms there is a iiexible member such as a chain 24.

By reference, especially to Fig. 4 of the drawings, it will be seen thatthe inner end of the sleeve lO is reduced and is preferably square incross section. :This end is engaged by the socket end of a handle 50. Itwill be obvious that b-y turning the handle, the sleeve'will be likewiseturned, and consequently the cam will be turned with the sleeve toinfluence the arms 18 to bring certain of the calks on the ends of thesaid arms a determined distance outward through the openings or slots 26in the periphery of the wheel. In accordance with the direction anddegree to which the handle is manipulated, the calks may be pro'ected toproject beyond the under face of t e wheel, the sides, or even' the topthereof. Thus, when it is desired that traction between the wheel andthe surface over which it travels is to be increased, the handle ismanipulated to turn the cam to cause the lower arms to be moved and thecalks on the outer ends thereof to be projected on tothe ground surface,while, when the wheel is to travel over a surface without having itscalks embedded therein, the lever is manipulated to bring the cam toanother position. The chain 24 at all times influences the arms to bringthe inner ends thereof into contacting engagement with the kouter endsof the cam, `and by twisting the arms as above described, the calks arearranged angularly with respect to the periphery of the wheel, so that afirmer bearing against the ground is thus provided than were the calksyarranged at a right angle with respect to the periphery of the wheel.

- To keep the periphery of the wheel clean, Iprovide a scraper, one formof which being illustrated in Fig. 8 of the drawings, and being in thenature of a fiat arm, while that illustrated in Fig. 9 Vis in the natureof a vbent .wire member which is desirable when the side members of thewheel 1project beyond the tread portion thereof. oth of the Scraperslare indicated by the numeral 25.

On the frame of the vehicle there is a segmental rack 51. The rack hasspaced notches 52 and 53 therein, and either of these notches isdesigned to receive the lever 50, in accordance with the position of thecam and in accordance with the directions in which the calks areprojected through their openings inthe periphery of the wheel, and it isthought that the foregoing description will fully set forth theconstruction of the improvement. v v

Having thus described the invention, what is claimed as new, is

1. In a tractor wheel, the combination with the spindle of an axle, of asleeve mounted thereon, a cam secured to the sleeve, disks surroundingthe sleeve and contacting with-the opposite faces of the cam, sai wheelincluding side members which contact with the disks, a rim providing thepe riphery of the wheel secured to the side members thereof, and saidrim having transverse openings therethrough, arms having their outerends widened to provide calks which latter are received in the referredto openings in the periphery of the wheel, and the inner ends of thearms contacting with the cam and disposed between the disks, a iieXibleelement passing through all of the arms for holding the same incontacting 'engagement with the disk, anti-frictional guide means foreach of the arms, and means for turning the sleeve on the axle spindleto arrange the cam at different relative positions with respect to thearms.

2. In combination with an axle spindle, of a traction wheel thereforincluding side plates and a rim providing the periphery of the wheelconnected to said side plates, said rim having angularly arrangedtransversely disposed openings therethrough, a sleeve freely received inthe wheel and surrounding the aXle spindle, a cam member secured to thesleeve, disks eccentrically mounted on the sleeve and contacting withthe opposite faces of the cam, and the side members of the wheel beingsecured to said disks, antifrietional rollers arranged in spaced pairsbetween the side members of the wheel, an arm guided between each pairof said rollers and having its inner end contacting with the cam, eachof said arms having an opening therethrough spaced an equi-distance fromthe inner end thereof, a continuous lchain passing through saidopenings, said arms being twisted upon themselves to provide an angularextension which has its outer end widened to provide a calk, one of saidcalks being received in each of the angle openings in the periphery ofthe wheel, means connected with the sleeve arranged to one side of thewheel for revolving the sleeve and cam, means for holding the sleeve andcam when so positioned, and a scraper member for the wheel.

In testimony whereof we aiiix our signatures.

WILLIAM Z. BLACK. DELBERT W. BUTZ.

